Technical Drawings

guidelines.
Recovery and Circulation Pumps should
RS
instructions regarding recirculation.
For this application:
Reference the Rinnai Hot Water System
11.16.2018
options. Air intake manifold shown for
Reference mixing valve manufacturer
with storage recovery system.
direct vent installations only.
Design Manual for recovery pump sizing
Do not use electronic cascade controls
12.15.2018
Installation Manual for common vent
Reference the Common Vent
be of bronze or stainless construction.
Note:
Condensate piping shall be CPVC or
PVC material and shall not be smaller
than the drain connection on the
appliance.
Components of the condensate
drainage shall be CPVC or PVC
material. All components shall be
selected for the pressure and
temperature rating of the installation.
Where the drain pipes from more than
one unit are manifolded together for
condensate drainage, the pipe or tubing
shall be sized in accordance with an
approved method as dictated
by local codes.
Condensate must be disposed of
according to local codes.
Circulation Pump should be controlled
by an Aquastat or Combination
Aquastat and Timer. Aquastat should be
set to a 10-20F differential of water
heater set temperature.
Circulation Pump should be sized to
maintain circulation loop temperature.
Circulation Pump should be sized to
overcome the pressure loss through the
tankless water heater, supply, and
return plumbing. Reference the Rinnai
Hot Water System Design Manual for
circulation pump sizing guidelines.
This is not an engineering drawing; it is intended only as a guide and not
as a replacement for professional engineering project drawings. This
drawing is not intended to describe a complete system. It is up to the
contractor or engineer to determine the necessary components and
configuration of the particular system to be installed. The drawing does
not imply compliance with local building code requirements. It is the
responsibility of the engineer or contractor to ensure that the installation is
in accordance with all local building codes. Confer with local building
officials before installation.
RINNAI AMERICA CORPORATION
PROHIBITED.
THIRD ANGLE PROJECTION
PROPRIETARY AND CONFIDENTIAL
D
C
B
A
A
B
C
D
1
2
3
4
5
6
7
8
8
7
6 5
4
DO NOT SCALE DRAWING
SCALE: NTS
0.005
WEIGHT:
Systems Design Manual
REV
1
PEACHTREE CITY, GA 30269
B
Angle =
12.15.2018
1-800-621-9419
SHEET 1 OF 1
TRSCU-IL6BB12-BC
2
DWG. NO.
SH
UNLESS OTHERWISE SPECIFIED:
MACHINED X.XXX =
INTERPRET GEOMETRIC
103 INTERNATIONAL DRIVE
0.010
TOLERANCING PER:
MATERIAL
FINISH
DRAWN
CHECKED
ENG APPR.
COMMENTS:
DATENAME
TITLE:
SIZE
3
TOLERANCES:
Sheet Metal X.XX = 0.030
X.XXX = 0.010
Fraction = 1/32
Angle = 1.0
THE INFORMATION CONTAINED IN
THIS DRAWING IS THE SOLE
PROPERTY OF RINNAI AMERICA. ANY
REPRODUCTIONIN PART OR AS A
WHOLE WITHOUT THE WRITTEN
PERMISSION OF RINNAI AMERICA IS
AB
Applicable Rack
Configurations
2 x TRW03CU
2 x TRS03CUIL
2 x TRS03CUILW
2 x TRS06CU
TRS06CU + TRS05CU
Aquastat Connection
C
ondensate
Drain Line
Tankless Rack System
6-12 Unit Back 2 Back InLine w Storage Tank
Optional Pump
Bypass
Optional
Tank
Bypass
Storage Tank
(No Burner or
Heating Element)
Submersible
Aquastat (Set at
20F below Rinnai
Temperature
Setting)
Gas Supply
Cold Water Supply
Aquastat Connection
Low Temp Supply
High Temp Supply
Low Temp Return
Aquastat Connection
High Temp Return